3. all of the waves in the electromagnetic spectrum are waves. question 3 options:
a. compression
b. longitudinal
c. mechanical
d. transverse
4. the law of reflection states that light is reflected off a surface at the same angle that light hits the surface. the arrow on the right (highlighted in yellow) of the diagram that shows the direction of light is the question 4 options: a. incident ray
b. refracted ray
c. coincident ray
d. reflected ray
5. reflection is the bouncing of light rays off of a surface. which situation is not an example of reflection? question 5 options:
a. looking at yourself in a mirror
b. focusing light through a camera lens
c. seeing an image of yourself in a still lake
d. looking at your teacher at the front of the class
6. why does light refract when it encounters the glass in a lens? question 6 options:
a. because it speeds up, which causes it to bend
b. because it slows down, which causes it to bend
c. because it hits a dense medium, which causes it to bounce off
d. because it gets absorbed, which causes it to lessen in intensity
7. the change in direction of the sun’s light as shown here is an example of question 7 options:
a. absorption.
b. diffraction.
c. reflection
d. refraction
8. the best example of diffraction is the image of question 8 options:
a. a ring around the sun caused by particles in the air.
b. a pencil that appears broken in a glass of water.
c. a fingerprint that appears to be enlarged under a magnifying glass.
d. a reflection in the mirror
9. which image correctly shows how light behaves when it travels from air through glass? question 9 options:
a
b
c
d
10. why are plants generally green? question 10 options:
a. the pigment chlorophyll absorbs green light waves
b. within the visible spectrum, plants prefer green wavelengths.
c. chlorophyll a and b, required for photosynthesis, is green.
d. the pigment chlorophyll reflects green light waves.
11. light is reflected when it falls on a clean, smooth surface. the diagram shows a ray of light falling on a surface. which diagram shows the reflected ray? question 11 options:
a
b
c
d
12. when light encounters a barrier with slits cut it in it, the light will bend through the slits creating a pattern like that seen in the image. what behavior of light is responsible for this pattern? question 12 options:
a. diffraction
b. rarefaction
c. reflection
d. refraction
13. gasoline tanks are usually white or some other light color, like yellow or green. gasoline tanks are not painted black. why are gasoline tanks usually white and never black? question 13 options:
a. black absorbs all visible light waves and heat waves.
b. black reflects electromagnetic waves, including heat waves.
c. black is a good conductor of all electromagnetic waves including heat waves. d. black is a poor conductor of all electromagnetic waves including heat waves.